> I saw a reference to Martin Gardner's article when I was in, maybe, 9th grade. > So I went to the main branch of the NY public library ("reading between the

> I saw a reference to Martin Gardner's article when I was in, maybe, 9th grade. > So I went to the main branch of the NY public library ("reading between the lions") and looked up the article on microfiche. Ouch. Now I feel old. I read that article in Dad's collection of Scientific American magazines...